Suspension means for guy strain insulators



June 6, 1933.

M, F. H. GOUVERNEUR 1,913,305

SUSPENSION MEANS FOR GUY STRAIN INSULATORS Filed April 1, 1951 @702 2 1% @a zreryear- Patented June 6, 1933 UNITED STATES PATENT OFFICE MINOR F. H. GOUVERNEUR, BALTIMORE, MARYLAND, ASSIGNOB TO LOCKE INSU- LATOR CORPORATION, OF BALTIMORE, MARYLAND, A CORPORATION OF MARYLAND SUSPENSION MEANS FOR GUY STRAIN INSULATORS Application filed April 1, 1931. Serial No. 526,999.

erally stated, is to provide suspension means of novel form by means of WlllCh such an 111- sulator may be connected with another in a string or chain or connected with a supporting element, clampor anything else desired.

An important object of the invention is to provide suspension means embodying a link of curved form and one piece constructionadapted, upon proper manipulation, to be threaded through the passage provided for its reception without it being necessary to bend or distort it, the link being moreover of. such formation that it will at no time contact with the edges of the insulator body with possible detriment thereto.

Another object of the invention is to provide an insulator suspension or connecting means embodying the combination of the curved link which passes through the insulator body and a clevis device of peculiar construction which will equalize the tensional strains exerted and which will be well capable of withstanding them.

Another object is to provide a suspension means in which the link which passes through the insulator body will conform to the curvature of the passage provided for its reception so that there will be area contact instead of line or point contact and consequently an even distribution of the strain instead 1 of concentration thereof at any locality.

An additional object is to provide an assembly of this character which will be simple and inexpensive to make, easy to use, positive in action, efficient and durable in service, and a general improvement in the art.

To the attainment of the foregoing and other objects and advantages, the invention preferably consists in the details of construction and the arrangement and combination of parts to be hereinafter more fully described and claimed, and illustrated in the accompanying drawing in which:

Figure 1 is a side elevation of my suspension means, the insulator being shown by dot and dash lines,

Figure 2 is a fragmentary elevation at right angles to Figure 1 with one of the clevis members shown in section,

Figure 3 is an elevation of the two clevis members alone with portions broken away to indicate indeterminate length,

Figure 4'is a fragmentary elevation showing how the clevismay be suspended from a stationary support,

Figure 5 is a fragmentary elevationshowing a slight modification, and I Figure 6 is a fragmentary elevation at right angles to Figure 5.

Referring more particularly to the drawing, I have shown a suspension mechanism particularly adapted for use in connection with what is known as a guystrain insulator 10 which is formed as an elongated substantially rectangular body having longitudinal grooves 11 in its faces and formed with transverse openings 12 at right angles to each other extending to the grooves.

These openings 12 are preferably circular in cross section at their centers and have their ends enlarged or flaring to define curved surfaces 13 which merge into the bottoms of the grooves 11.

In carrying out the invention I provide an elongated curved link 14 which is preferably something more than half of an ellipse and which includes arm portions 15 connected by a bight portion 16, the latter having a curvature substantially the same as that of the curved surface 13 in the linkv receiving passage in the insulator. As shown the bight portion of the link is curved a trifle less abruptly than the surface 13 so that when a longitudinal strain isapplied to the link it may yield slightly and bear conformingly against the surface 13. The curvature of the arms 15 is such that they will at no time, even though considerably flexed by longitudinal strain, engage against the corners of the insulator at the bottom of the grooves 11, thereby avoiding any detrimental action. The bight portion 16 has its cross sectional configuration preferably transversely curved so as to conform still more perfectly to the surface 13. At their ends the arms are formed with ears 17 which are of course apertured and which are provided for the purpose of establishing connection with the clevis device. The ears 17 are of less size than the passage 12 so as to be capable of insertion therethrough when the link is threaded into place.

The clevis device above referred to and indicated as a whole by the numeral 18 is shown as comprising a pair of angular members 19 which are formed simply from elongated metallic strips of suitable gauge bent into V-shape as clearly illustrated in Figure 1. These members are similar and terminate in apcrtured cars 20 which are adapted to .be disposed against the opposite sides of the ears 17 and to be connected thereto as by pins 21 preferably cottered as at 22. The ears 20 project laterally beyond the members 19 to a greater extent atone side than at the other so that the members 19 may lie with their bight portions in edge to edge contacting relation as shown in Figure 2 especially when the clevis is used for suspending the insulator from a ring, loop or lthe like shown at The bight portions of these members are preferably curved in cross section on their inner faces as shown in Fig ure 2 so as to have a better bearing upon the member 23.

A distinct feature of importance in the construction of the clevis device is that the ear 20 on the end of one member 19 engages against the outside of one ear 17 while the ear on the other end of the same member .19 engages against the inside of the other in Figure 4, the bight portions of the members 19 may be engaged over a pin or bolt 25 passing through an eye or U-bolt 26 carried by the support 24, this constituting an extraordinarily simple mode of suspension.

Instead of using the pins 21 and eotters 22 as described in connection with the first form shown in Figuresl to 8 inclusive, I may replace the pin 21 with a bolt 27 equipped with a nut 28 which is locked or prevented from rotation by bending outwardly against one face thereof a lug :29 formed on one of the members 19 which corresponds to the members 19.

To assemble the entire suspension device, it is of course first necessary to thread the link 14 through the passage in the insulator. Naturally this cannot be done except by turning the link so that it will extend in a direction opposite to that shown in Figure 1 whereupon one end is inserted into the passage 12. By moving the link about while this end is passed on through, it is a simple matter to effect its entire insertion into the proper position without it being necessary to distort it. This is an easy matter and requires no unusual skill or care. The ears on the ends of the link are then brought up and inserted between the pairs of ears on the ends of the members 19 and the pins or bolts, whichever may be preferred, are inserted. Of course, a similar link is inserted through the other passage 12 in the same manner when it is desired to connect a plurality of the insulators in a chain or string or when it is desired to suspend something else from it, this being immaterial.

In the use of suspension means constructed in accordance with my invention I have found that the holding action is remarkably strong particularly as the strain is divided between the two members 19. As they are of the same length and are arranged alternately it should be clear that each will bear its full share of the burden and that the load is thus equalized or distributed. Owing to the fact that the arms of the link are spaced outwardly away from the bottom of the grooves 11 they may be brought considerablyv closer together, as might occur after prolonged use under heavy tensional strains, without ever contacting wit-h and crushing, chipping or otherwise damaging the porcelain at the edges. The substantially conforming engagement of the bight portion of the link with the inner Wall or surface of the link receiving passage and the transverse curving of the bight portion insures a large area contact so that no strains will be concentrated at any localized points on the porcelain, all strain being distributed and stresses thereby relieved. It is thought from the foregoing that the construction, use and advantages should be readily apparent to one skilled in the art without further explanation.

lVhile I have shown and described the pre ferred embodiments of the invention, it should be understood that the disclosure is merely an exemplification of the principles involved as the right is reserved to make all such changes in the details of construction as will widen the field of utility and increase the adaptability of the device provided such changes constitute no departure from the spirit of the invention or the scope of the claims hereunto appended.

Having thus described the invention, I claim:

1. Suspension means for a guy strain insulator of the type formed as an elongated dielectric body and having curved interlinking passages therein, comprising an elongated curved link insertable through one of the passages and terminating in attaching ears, and a clevis device pivotally connected with said ears and formed as a pair of angular members arranged to have their ends embrace said ears.

2. Suspension means for a guy strain insulator of the type formed as an elongated dielectric body and having curved interlink ng passages therein, comprising an elongated curved link insertable through one of the passages and terminating in attaching ears, and a clevis device pivotally connected with said ears and formed as a pair of angular members arranged side by side and terminating in attaching ears, the ears on corresponding ends of said angular members being disposed against opposite sides of the ears on the link.

3. Suspension means for a guy strain insulator of the type formed as an elongated dielectric body and having curved interlinking passages therein, comprising an elongated curved link insertable through one of the passages and terminating in attaching ears, and a clevis device pivotally connected with said ears and formed as a pair of angular members arranged side by side, said angular members terminating in ears, the ears on one being disposed a'gainst the outer and inner surfaces of the respective first named ears, and the ears on the other being disposed against the inner and outer surfaces of 35 the respective first named ears.

4. Suspension means for a guy strain insulator of the type formed as an elongated dielectric body and having interlinking passages therein with curved walls, comprising an elongated curved link insertable through one of the passages and terminating in attaching ears, a clevis device pivotally connected with said ears and formed as a pair of angular members, said link having a bight portion adapted to conform to the curved Wall of the passage and having curved arms adapted to flare outwardly from the sides of the insulator, the ends of said arms being adapted to project beyond the 0 end of the insulator and converging.

5. Suspens on means for an insulator formed as a dielectric body having passages therethrough at right angles to each other, the inner walls of the passages being curved;

65 comprising an elongated more than half elliptical link insertable through a passage and having a curved bight portion engage able with the curved surface of the passage and having diverging arms terminating in 0 converging attaching ears, said arms being ada ted to flare normally in spaced relation to t e sides of the insulator, said link being threadable through the passage without distortion, and a V-shaped clevis device pivotally connected with said attaching ears.

6. Suspension means for an insulator formed as a dielectric bodyhaving passages therethrough at right angles to each other, the inner Walls of the passages being curved; comprising an elongated more than half elliptical link having a curved bight portion engageable with the curved surface of the passage and having diverging arms terminating in converging attaching ears, said arms being adapted to flare normally in spaced relation to the sides of the insulator, said link being threadable through the passsage Without distortion, and a clevis device pivotally connected with said attaching ears and comprising a pair of similar members of substantially V-shape having their ends disposed against opposite sides of said ears.

In testimony whereof I affiX my signature.

MINOR F. H. GOUVERNEUR. 

